Diagnostic cartridge



FIG. 1 is a perspective of a diagnostic cartridge showing the claimed design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines depict portions of the diagnostic cartridge that form no part of the claimed design; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a diagnostic cartridge, as shown and described. 